Closing plug for a container-installed flange



FIG. 1 is a top, rear, and right side perspective view of a closing plug for a container-installed flange showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a front, bottom perspective view thereof;

FIG. 6 is a rear, bottom perspective view thereof; and,

FIG. 7 is a side elevation view thereof, wherein the opposite side appears the same. 

CLAIM The ornamental design for a closing plug for a container-installed flange, as shown and described. 